Has anyone tried the FMF Q series muffler ? Just wondering how they are. I want the DR. D, but they don't know when they are going to produce the quiet core.
FMF Q
Started by extreme-yamaha, Jul 06 2001 07:33 AM
14 replies to this topic
Posted 06 July 2001 - 07:33 AM
Has anyone tried the FMF Q series muffler ? Just wondering how they are. I want the DR. D, but they don't know when they are going to produce the quiet core.
Posted 06 July 2001 - 03:48 PM
The 4Q is more quiet than the uncorked WR silencer by far - not as quiet as with the cork in. Power is still strong maybe a little down in the middle - it is hard to tell.
- Sean
- Sean
Posted 06 July 2001 - 04:03 PM
Just bolted it on tonight on a YZ. Around the yard it revved a little quicker and wanted to wheelie when shifting. I would say a little more low end, a noticable increase in upper mid-range to top end. It is better than I was expecting using the stock header and not extremely quiet but quiet enough.
Posted 10 July 2001 - 11:21 AM
I had the stock muffler on w/ the baffle removed, and since switching to the FMF Q with the FMF header, the bike is MUCH snappier, and I feel much better when I pass groups of hikers. I think it's a great add-on for those of us who don't live 10 miles from civilization!
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'01 WR 250F - FMF Q, grey wire mod, airbox mod, YZ timed, pro-tapers
'98 YZ400F
'98 KX 125
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'01 WR 250F - FMF Q, grey wire mod, airbox mod, YZ timed, pro-tapers
'98 YZ400F
'98 KX 125
Posted 11 July 2001 - 01:07 PM
Does anyone know what is quieter, the FMF Q or the wr250 stock pipe with vortip? And I don't mean according to FMF.
Posted 11 July 2001 - 06:44 PM
Mike, I dont think anything is quieter the a stocker with the vortip in, I tested my 426 with the stock/vortip combo and blew an 89db, the ranger told me that that was a record for the bike. I've heard that the FMF unit isnt as quiet as it should be.
Posted 12 July 2001 - 06:41 AM
Thanks Dan. OK I am convinced. DrD does not seem to be making any headway on their quiet muffler, so I guess I need to go vortip for those enduros with sound tests. I hate having to change pipes for this though, it is so eay to get exhaust leaks. So where is the best place to mail order the vortip nowadays?
Posted 12 July 2001 - 06:59 AM
The vortip is made so you don't have to replace the stock pipe. And it is cheaper. But the FMF Q will save weight and increase HP.
But for the price, the vortip does a great job.
But for the price, the vortip does a great job.
Posted 12 July 2001 - 08:30 AM
mike,
what about putting a vortip in a Dr.D pipe?
then take the vortip off for non-enduro use.
what about putting a vortip in a Dr.D pipe?
then take the vortip off for non-enduro use.
Posted 12 July 2001 - 09:35 PM
Quote
Originally posted by Dan Lorenze:
Mike, I dont think anything is quieter the a stocker with the vortip in, I tested my 426 with the stock/vortip combo and blew an 89db, the ranger told me that that was a record for the bike. I've heard that the FMF unit isnt as quiet as it should be.
Mike, I dont think anything is quieter the a stocker with the vortip in, I tested my 426 with the stock/vortip combo and blew an 89db, the ranger told me that that was a record for the bike. I've heard that the FMF unit isnt as quiet as it should be.
so does this mean it (the FMF) won't pass an enduro sound test?
[This message has been edited by TheBOS (edited 07-12-2001).]
Posted 12 July 2001 - 10:39 AM
SUnruh: Steve, I was just thinking how disappointed I was with the DrD quiet core. But perhaps you have a point, that does not mean the vortip will be as bad in the DrD. I have not seen a vortip up close, how hard do you think it would be to make an adapter? Does the vortip replace the stock baffle, ie one screw?
Posted 12 July 2001 - 11:02 AM
I had asked for the O.D. of the Vortip for the same reason, but no one ever posted it. I want to try it in my E Series.
Posted 12 July 2001 - 11:27 AM
Quote
Originally posted by mikeolichney:
SUnruh: Steve, I was just thinking how disappointed I was with the DrD quiet core. But perhaps you have a point, that does not mean the vortip will be as bad in the DrD. I have not seen a vortip up close, how hard do you think it would be to make an adapter? Does the vortip replace the stock baffle, ie one screw?
SUnruh: Steve, I was just thinking how disappointed I was with the DrD quiet core. But perhaps you have a point, that does not mean the vortip will be as bad in the DrD. I have not seen a vortip up close, how hard do you think it would be to make an adapter? Does the vortip replace the stock baffle, ie one screw?
mike,
what do you mean by "bad"?
i've seen a vortip up close. looks like it just slips in and has a set screw to hold it in place. if my memory is correct.
i think you could take the end cap off the DrD pipe and slip the vortip inside and bolt it in. this is just a guess, however.
yes, i wish doug had a enduro legal insert for his fantastic pipe. i'd be on that like a duck on a june bug.
Posted 12 July 2001 - 11:48 AM
Quote
Originally posted by SUnruh:
mike,
what do you mean by "bad"?
mike,
what do you mean by "bad"?
I mean the DrD pipe with the quiet core insert is bad. My WR with the DrD pipe with the quiet core installed runs like crap. I realize the quiet core was designed for the PC T4, not by Doug D. PC just makes his pipe. He did not even try the quiet core out until much later, when he realized that alot of us were interested in his pipe for things besides MX.
